Answer:
To get from ax-5a+4x-20 to a(x-5)+2(2x-10). You had to of found a common factor.
Another (better) way to simply this would be finding the greatest common factor.
a(x-5)+4(x-5)
(a+4)(x-5)
It’s gonna be radical 10x/ 4x.
<span><span>4<span>a<span><span>^</span><span></span></span></span><span>b<span><span><span><span>3</span><span>^7</span><span></span></span></span><span></span></span></span><span>c<span>^3</span></span></span><span><span></span></span></span>